CN-121083999-B - Impact-resistant sandwich composite material laminated plate imitating big-tooth ant multilayer structure and preparation method thereof

CN121083999BCN 121083999 BCN121083999 BCN 121083999BCN-121083999-B

Abstract

The invention relates to the technical field of bionic impact-resistant composite materials, in particular to an impact-resistant sandwich composite material laminated plate imitating a big-tooth ant multilayer structure and a preparation method thereof. The anti-impact sandwich composite material laminated plate comprises a plurality of fiber cylinder layers and a plurality of fiber cloth layers, wherein one fiber cylinder layer is positioned between two fiber cloth layers, the fiber cloth layers comprise a plurality of unidirectional fiber cloth layers and/or a plurality of textile fiber cloth layers, the fiber cylinder layer comprises at least one columnar fiber cylinder layer, the columnar fiber cylinder layer is formed by arranging a plurality of columnar fiber cylinder arrays, and all columnar fiber cylinders are provided with vertically arranged bundles along the thickness direction. According to the invention, through the interfacial wave locking effect of the fabric fiber cloth and the cross-layer interlocking effect of the columnar fiber drum, the interlayer bonding strength and the bearing capacity are improved, the fabric has excellent shock resistance and energy absorption characteristics, is not easy to be layered and damaged when being subjected to loads such as impact and the like, shows high bearing capacity and strong damage tolerance capacity, and provides application prospects for the field of shock resistance protection.

Inventors

ZHAO SHICAI
WU WENHAO
ZHANG DEJUN
ZHANG QIANLI
GAO ZHAOYI

Assignees

内蒙古大学

Dates

Publication Date: 20260505
Application Date: 20250923

Claims (9)

1. The anti-impact sandwich composite material laminated plate is characterized by comprising a fiber cloth layer, a fiber cylinder layer and a fiber cloth layer or a fiber cloth layer, a fiber cylinder layer, a fiber cloth layer, a fiber cylinder layer and a fiber cloth layer from top to bottom along the thickness direction, wherein the fiber cloth layer comprises a plurality of fabric fiber cloth layers or a plurality of unidirectional fiber cloth layers and a plurality of fabric fiber cloth layers, boundary wave lock effect is formed in the fiber cloth layers, the fiber cylinder layer is formed by arranging a plurality of columnar fiber cylinder arrays, a single columnar fiber cylinder is formed by curling unidirectional fiber cloth, and all columnar fiber cylinders are provided with vertically arranged beam cylinders along the thickness direction of the anti-impact sandwich composite material laminated plate, so that a cross-layer interlocking effect is formed on the fiber cloth layers.
2. The anti-impact sandwich composite material laminated plate imitating the multi-layer structure of the big-tooth soldier ants according to claim 1, wherein the height of each fiber cylinder layer is 0.5 mm-5 mm, the diameter of each single columnar fiber cylinder is 1 mm-10 mm, the thickness of each unidirectional fiber cloth layer is 0.02 mm-0.25 mm, and the thickness of each fabric fiber cloth layer is 0.25 mm-0.64 mm.
3. The large-tooth-ant-imitating multi-layer structure impact-resistant sandwich composite material laminated board according to claim 1, wherein the laying angle of the unidirectional fiber cloth layer is-180 °, and the difference between the laying angle of the fabric fiber cloth layer and the 0 ° -90 ° unidirectional fiber cloth layer is 0 ° -90 °.
4. The multi-layered structure of the impact-resistant sandwich composite material of the big tooth ant imitation multi-layer structure according to claim 1, wherein the structure of the impact-resistant sandwich composite material comprises [ WF/CF/WF ], [ WF/UD/CF/UD/WF ], [ UD/WF/CF/WF/UD ] or [ UD/WF/CF/WF/UD ] and wherein UD independently represents a laminate of 4 to 6 layers of unidirectional fiber cloth, the layering of the unidirectional fiber cloth is [45/0/-45/90], [90/-45/0/45], [45/0/-45/90/45], [45/90/-45/0/45], [ -45/45/-90/-45 ] or [ -45/90/-45/0/45/-45]; WF independently represents a laminate of 2 layers of fabric fiber cloth, the layering of which is [ (0,90)/(.+ -. 45) ], [ (+ -. 45)/(.+ -. 45) ] or [ (.+ -. 45)/(0,90) ], wherein [ (0,90) ] represents that the fabric fiber cloth is at the same layering angle as the 0 DEG unidirectional fiber cloth, [ (.+ -. 45) ] represents that the fabric fiber cloth is at 45 DEG different layering angle from the 0 DEG unidirectional fiber cloth, CF represents a fiber tube layer composed of columnar fiber tubes arranged in an array, and the entire layer of fibers is vertically upward.
5. The multi-layered structure of the impact-resistant sandwich composite material laminate imitating the construction of the big-tooth soldier ants according to claim 4, wherein the unidirectional fiber cloth, the textile fiber cloth and the columnar fiber cylinder are composed of the fiber-resin composite material of the same resin matrix and the same fibers.
6. The multi-layered structure of the impact resistant sandwich composite material laminate of the present invention as claimed in claim 4, wherein the fibers in the unidirectional fiber cloth, the woven fiber cloth and the columnar fiber cylinder are independently at least one of carbon fiber, basalt fiber, glass fiber, aramid fiber and ultra high molecular weight polyethylene fiber.
7. A method for preparing the impact-resistant sandwich composite material laminated plate imitating the multi-layer structure of the big tooth ant according to any one of claims 1 to 6, which is characterized by comprising the following steps: stacking the unidirectional fiber resin-based prepreg cloth, the textile fiber resin-based prepreg cloth and the unidirectional columnar fiber resin-based prepreg cylinder according to preset layering to obtain a laminated prepreg; And sequentially carrying out hot pressing impregnation and hot pressing curing on the laminated prepreg to obtain the impact-resistant sandwich composite laminated plate imitating the big-tooth soldier ant multilayer structure.
8. The method for producing an impact-resistant sandwich composite laminate of a large-tooth ant-like multi-layer structure according to claim 7, wherein the unidirectional columnar fiber resin-based prepreg cylinder is formed by a plurality of columnar fiber cylinders being closely arranged in advance.
9. The method for preparing the impact-resistant sandwich composite laminated plate imitating the large-tooth soldier multilayer structure, which is characterized by being characterized in that the hot pressing impregnation temperature is 70-90 ℃, the pressure is 0.2-0.35 MPa, the dwell time is 30-60 min, the hot pressing curing temperature is 110-140 ℃, the pressure is 0.2-0.35 MPa, and the dwell time is 60-90 min.

Description

Impact-resistant sandwich composite material laminated plate imitating big-tooth ant multilayer structure and preparation method thereof Technical Field The invention relates to the technical field of protection of bionic impact-resistant composite material laminated plates, in particular to an impact-resistant sandwich composite material laminated plate imitating a big-tooth ant multilayer structure and a preparation method thereof. Background Along with the higher requirements of the lightweight design concept on structural performance and manufacturing process, the manufacturing of the lightweight high-strength impact-resistant sandwich composite material laminated plate has become an important subject for promoting the performance of the aircraft to be improved across generations. The materials have become indispensable key materials in the fields of aerospace, automobile manufacturing and the like due to the excellent properties such as low density, high specific strength, high specific modulus and the like. Meanwhile, the application of the automobile body is gradually expanded from secondary bearing parts such as automobile bodies and decorations to key bearing parts such as chassis, bearings and front bumpers. The structure strength of the automobile is improved, the weight of the whole automobile is reduced, and therefore the energy consumption is effectively reduced. Although the impact-resistant sandwich composite material laminate has many excellent characteristics, it still faces the problems of low interlayer bonding strength, poor impact resistance, high cost and the like, and the conventional sandwich structure is easy to crush and cause serious damage when being subjected to large impact, which limits the application of the sandwich structure in more fields. Therefore, how to realize low-cost and lightweight manufacturing of the composite material laminated plate with the impact-resistant sandwich structure, and improve impact resistance, high bearing capacity and strong energy absorption performance at the same time is still a technical challenge to be solved currently. Disclosure of Invention In order to solve the problems, the invention provides an impact-resistant sandwich composite material laminated plate imitating a big-tooth ant multilayer structure and a preparation method thereof. The impact-resistant sandwich composite material laminated board comprises a plurality of fiber cylinder layers and a plurality of fiber cloth layers, wherein one fiber cylinder layer is positioned between two fiber cloth layers. The method is characterized in that a fabric fiber cloth and a columnar fiber tube are introduced, and the interface wave lock effect of the fabric fiber cloth and the cross-layer interlocking effect of the columnar fiber tube solve the problems of easy layering and large damage area of the traditional unidirectional fiber cloth laminated board, thereby realizing the effects of reducing the damage degree, improving the impact resistance and the bearing capacity and reducing layering and damage. In order to achieve the above purpose, the invention adopts the following technical scheme: The invention aims to provide an impact-resistant sandwich composite material laminated plate imitating a big tooth ant multilayer structure, which comprises a plurality of fiber cylinder layers and a plurality of fiber cloth layers, wherein one fiber cylinder layer is positioned between two fiber cloth layers, the fiber cloth layers comprise a plurality of unidirectional fiber cloth layers and/or a plurality of fabric fiber cloth layers, boundary wave lock effect is formed between the layers of the fiber cloth layers, the fiber cylinder layer comprises at least one columnar fiber cylinder layer, the columnar fiber cylinder layer is formed by arranging a plurality of columnar fiber cylinder arrays, and all columnar fiber cylinders are provided with vertically arranged bunching cylinders along the thickness direction of the impact-resistant sandwich composite material laminated plate, so as to form cross-layer interlocking effect on the fiber cloth layers. In a preferred embodiment of the present invention, the impact-resistant sandwich composite material laminate is composed of, or consists of, a fiber cloth layer, a fiber tube layer and a fiber cloth layer from top to bottom in the thickness direction. In the preferred embodiment of the invention, the height of each columnar fiber tube layer is 0.5 mm-5 mm, the single columnar fiber tube is formed by curling unidirectional fiber cloth, the diameter is 1 mm-10 mm, the thickness of each unidirectional fiber cloth layer is 0.02 mm-0.25 mm, and the thickness of each fabric fiber cloth layer is 0.25 mm-0.64 mm. In a preferred embodiment of the present invention, the laying angle of the unidirectional fiber cloth layer is-180 ° to 180 °, and the difference between the laying angle of the fabric fiber cloth layer and the 0 ° unidirectional fiber cloth la